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a2c155131b
Include <limits.h> in 'bench.h' to provide a UINT_MAX definition and avoid
multiple compile errors against mips64el/musl-libc like:
benchs/bench_local_storage.c: In function 'parse_arg':
benchs/bench_local_storage.c:40:38: error: 'UINT_MAX' undeclared (first use in this function)
40 | if (ret < 1 || ret > UINT_MAX) {
| ^~~~~~~~
benchs/bench_local_storage.c:11:1: note: 'UINT_MAX' is defined in header '<limits.h>'; did you forget to '#include <limits.h>'?
10 | #include <test_btf.h>
+++ |+#include <limits.h>
11 |
seen with bench_local_storage.c, bench_local_storage_rcu_tasks_trace.c, and
bench_bpf_hashmap_lookup.c.
Fixes: 7308748925 ("selftests/bpf: Add benchmark for local_storage get")
Signed-off-by: Tony Ambardar <tony.ambardar@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/8f64a9d9fcff40a7fca090a65a68a9b62a468e16.1721713597.git.tony.ambardar@gmail.com
98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#pragma once
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#include <stdlib.h>
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#include <stdbool.h>
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#include <linux/err.h>
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#include <errno.h>
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#include <unistd.h>
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#include <bpf/bpf.h>
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#include <bpf/libbpf.h>
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#include <math.h>
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#include <time.h>
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#include <sys/syscall.h>
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#include <limits.h>
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struct cpu_set {
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bool *cpus;
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int cpus_len;
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int next_cpu;
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};
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struct env {
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char *bench_name;
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int duration_sec;
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int warmup_sec;
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bool verbose;
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bool list;
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bool affinity;
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bool quiet;
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int consumer_cnt;
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int producer_cnt;
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int nr_cpus;
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struct cpu_set prod_cpus;
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struct cpu_set cons_cpus;
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};
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struct basic_stats {
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double mean;
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double stddev;
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};
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struct bench_res {
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long hits;
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long drops;
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long false_hits;
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long important_hits;
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unsigned long gp_ns;
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unsigned long gp_ct;
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unsigned int stime;
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};
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struct bench {
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const char *name;
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const struct argp *argp;
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void (*validate)(void);
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void (*setup)(void);
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void *(*producer_thread)(void *ctx);
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void *(*consumer_thread)(void *ctx);
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void (*measure)(struct bench_res* res);
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void (*report_progress)(int iter, struct bench_res* res, long delta_ns);
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void (*report_final)(struct bench_res res[], int res_cnt);
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};
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struct counter {
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long value;
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} __attribute__((aligned(128)));
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extern struct env env;
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extern const struct bench *bench;
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void setup_libbpf(void);
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void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns);
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void hits_drops_report_final(struct bench_res res[], int res_cnt);
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void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns);
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void false_hits_report_final(struct bench_res res[], int res_cnt);
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void ops_report_progress(int iter, struct bench_res *res, long delta_ns);
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void ops_report_final(struct bench_res res[], int res_cnt);
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void local_storage_report_progress(int iter, struct bench_res *res,
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long delta_ns);
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void local_storage_report_final(struct bench_res res[], int res_cnt);
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void grace_period_latency_basic_stats(struct bench_res res[], int res_cnt,
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struct basic_stats *gp_stat);
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void grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt,
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struct basic_stats *gp_stat);
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static inline void atomic_inc(long *value)
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{
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(void)__atomic_add_fetch(value, 1, __ATOMIC_RELAXED);
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}
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static inline void atomic_add(long *value, long n)
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{
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(void)__atomic_add_fetch(value, n, __ATOMIC_RELAXED);
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}
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static inline long atomic_swap(long *value, long n)
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{
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return __atomic_exchange_n(value, n, __ATOMIC_RELAXED);
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}
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